631746572 has 6 divisors (see below), whose sum is σ = 1105556508. Its totient is φ = 315873284.

The previous prime is 631746553. The next prime is 631746581. The reversal of 631746572 is 275647136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78968318 + ... + 78968325.

It is an arithmetic number, because the mean of its divisors is an integer number (184259418).

Almost surely, 2^631746572 is an apocalyptic number.

It is an amenable number.

631746572 is a deficient number, since it is larger than the sum of its proper divisors (473809936).

631746572 is a wasteful number, since it uses less digits than its factorization.

631746572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157936647 (or 157936645 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The square root of 631746572 is about 25134.5692622730. The cubic root of 631746572 is about 858.0533634127.

The spelling of 631746572 in words is "six hundred thirty-one million, seven hundred forty-six thousand, five hundred seventy-two".